<template>
    <div v-loading="loading">
        <div>
            <el-form-item :label="$t('website.enable')">
                <el-switch v-model="data.enable" @change="updateEnable"></el-switch>
            </el-form-item>
            <div style="margin-top: 10px">
                <el-checkbox border v-model="tailLog" style="float: left" @change="changeTail">
                    {{ $t('commons.button.watch') }}
                </el-checkbox>
                <el-button
                    style="margin-left: 20px"
                    @click="onDownload"
                    icon="Download"
                    :disabled="data.content === ''"
                >
                    {{ $t('file.download') }}
                </el-button>
            </div>
        </div>
        <br />
        <codemirror
            style="height: calc(100vh - 430px); width: 100%"
            :autofocus="true"
            :placeholder="$t('website.noLog')"
            :indent-with-tab="true"
            :tabSize="4"
            :lineWrapping="true"
            :matchBrackets="true"
            theme="cobalt"
            :styleActiveLine="true"
            :extensions="extensions"
            v-model="data.content"
            :disabled="true"
            @ready="handleReady"
        />
    </div>
</template>
<script lang="ts" setup>
import { Codemirror } from 'vue-codemirror';
import { javascript } from '@codemirror/lang-javascript';
import { oneDark } from '@codemirror/theme-one-dark';
import { computed, nextTick, onMounted, onUnmounted, ref, shallowRef } from 'vue';
import { OpWebsiteLog } from '@/api/modules/website';
import { dateFormatForName } from '@/utils/util';

const extensions = [javascript(), oneDark];
const props = defineProps({
    logType: {
        type: String,
        default: '',
    },
    id: {
        type: Number,
        default: 0,
    },
});
const logType = computed(() => {
    return props.logType;
});
const id = computed(() => {
    return props.id;
});
let loading = ref(false);
let data = ref({
    enable: false,
    content: '',
});
let tailLog = ref(false);
let timer: NodeJS.Timer | null = null;

const view = shallowRef();
const handleReady = (payload) => {
    view.value = payload.view;
};

const getContent = () => {
    const req = {
        id: id.value,
        operate: 'get',
        logType: logType.value,
    };
    loading.value = true;
    OpWebsiteLog(req)
        .then((res) => {
            data.value = res.data;
            nextTick(() => {
                const state = view.value.state;
                view.value.dispatch({
                    selection: { anchor: state.doc.length, head: state.doc.length },
                    scrollIntoView: true,
                });
            });
        })
        .finally(() => {
            loading.value = false;
        });
};

const changeTail = () => {
    if (tailLog.value) {
        timer = setInterval(() => {
            getContent();
        }, 1000 * 5);
    } else {
        onCloseLog();
    }
};

const updateEnable = () => {
    const operate = data.value.enable ? 'enable' : 'disable';
    const req = {
        id: id.value,
        operate: operate,
        logType: logType.value,
    };
    loading.value = true;
    OpWebsiteLog(req)
        .then(() => {
            getContent();
        })
        .finally(() => {
            loading.value = false;
        });
};

const onDownload = async () => {
    const downloadUrl = window.URL.createObjectURL(new Blob([data.value.content]));
    const a = document.createElement('a');
    a.style.display = 'none';
    a.href = downloadUrl;
    a.download = logType.value + '-' + dateFormatForName(new Date()) + '.log';
    const event = new MouseEvent('click');
    a.dispatchEvent(event);
};

const onCloseLog = async () => {
    tailLog.value = false;
    clearInterval(Number(timer));
    timer = null;
};

onMounted(() => {
    getContent();
});

onUnmounted(() => {
    onCloseLog();
});
</script>
